医学
心肌梗塞
队列
乳腺动脉
外科
队列研究
内科学
心绞痛
心脏病学
入射(几何)
回顾性队列研究
动脉
物理
光学
作者
Sana N. Buttar,Tristan D. Yan,David P. Taggart,David H. Tian
出处
期刊:Heart
[BMJ]
日期:2017-06-23
卷期号:103 (18): 1419-1426
被引量:161
标识
DOI:10.1136/heartjnl-2016-310864
摘要
Background
A substantial body of evidence demonstrates that myocardial revascularisation using bilateral internal mammary arteries (BIMA) improves long-term survival compared with single/left internal mammary artery (LIMA) grafting. To date, limited analyses have been made regarding other short-term and long-term outcomes in BIMA strategy. Objectives
The primary aim of the present review is to update the difference in long-term survival between BIMA and LIMA grafting and to thoroughly investigate other secondary short-term and long-term clinical outcomes between these two grafting procedures. Methods
Electronic searches were performed using three databases from their inception to November 2015. Relevant studies comparing long-term survival between BIMA and LIMA grafting were identified. Data were extracted by two independent reviewers and analysed according to predefined clinical outcomes. Results
Twenty-nine observational studies were identified, with a total of 89 399 patients. Overall, BIMA cohort had significantly improved long-term survival compared with LIMA cohort (HR 0.78; p<0.00001). BIMA cohort also had significantly reduced hospital mortality rates (1.2% vs 2.1%, p=0.04), cerebrovascular accidents (1.3% vs 2.9%, p=0.0003) and need for revascularisation (4.8% vs 10%, p=0.005), although the incidence of deep sternal wound infection (DSWI) was increased (1.8% vs 1.4%, p=0.0008) in this grafting strategy. Long-term cardiac-free, myocardial infarction-free and angina-free survivals were also superior for the BIMA cohort. Conclusions
BIMA grafting is associated with enhanced overall long-term outcomes compared with LIMA grafting. While the BIMA cohort demonstrates an increased incidence of DSWI, the survival benefits and other morbidity advantages outweigh this short-term risk.
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